摘要:
An auxiliary frame for supporting elements of a front suspension of a motor-vehicle includes two end supports for connection thereto of suspension elements and a structure which connects the end supports to each other. The connecting structure has a front beam and a rear beam which connect the end supports to each other. The rear beam has an arch-like configuration which extends substantially in a horizontal plane, with a central portion arranged in a forwardly spaced position. The front beam of the connecting structure has a configuration which is substantially straight and perpendicular to a vertical median plane of the auxiliary frame. The front beam and the rear beam are longitudinally spaced from each other and connected to each other by at least two lateral longitudinal arms spaced from each other and which have a configuration substantially straight and parallel to the vertical median plane of the auxiliary frame.
摘要:
A hybrid powertrain unit comprises an engine and a gearbox with a primary shaft connectable to an engine shaft via a clutch and a secondary shaft with an output pinion meshing with a first differential crown wheel. An electric machine is configured to function as an electric motor and generator, having a shaft connected by a transmission to a second differential crown wheel. The transmission, arranged between the electric machine shaft and the second crown wheel includes a first engagement device. The electric machine shaft is connected to the engine shaft by a belt transmission including a belt engaged on a first pulley connected to the electric machine shaft and a second pulley connected to the engine shaft. Between the electric machine shaft and said first pulley is a second engagement device. The engagement devices are arranged coaxially with the electric machine shaft on opposite sides of the electric machine.
摘要:
Described herein is a gearbox for a motor vehicle including a plurality of forward gear ratios and a reverse gear ratio, the gearbox further including: a control device (configured for controlling the selection and the engagement of said forward gear ratios and of said reverse gear ratio; and a plurality of engagement devices that can be controlled by means of said control device for engaging the forward gear ratios or reverse gear ratio (RM) of the gearbox that are operatively associated to said devices. The gearbox includes a locking device, which is electrically controlled and configured for preventing actuation of the engagement device associated to a predetermined forward gear ratio, said locking device being configured for being actuated above a threshold speed of the motor vehicle on which said gearbox is installed.
摘要:
A hybrid powertrain unit comprises an engine, and a gearbox device with a primary shaft connectable to a shaft of the engine via a clutch. The gearbox device comprises a secondary shaft with an output pinion meshing with a first crown wheel of a differential, the casing of which is rigidly connected to a casing of the gearbox device. An electric machine is configured to function as an electric motor and an electric generator, having a shaft connected by a transmission to a second crown wheel of the differential. In the transmission, arranged between the electric machine shaft and the second crown wheel is an engagement device that can be actuator driven. The electric machine shaft is connected to the engine shaft, on a side opposite to the gearbox device by a belt transmission that controls vehicle auxiliary devices, which are mounted coaxially with respect to the electric machine.
摘要:
A system for controlling the aerodynamic drag of a motor vehicle includes a porous wall that closes externally a chamber obtained within a component of the structure of the motor vehicle in such a way that, when the motor vehicle is travelling, a first part of the pores situated in an area of the aerodynamic field of the vehicle with higher relative pressure enables part of the flow of air that laps the vehicle to enter the chamber. A part of the pores situated in an area of the aerodynamic field of the vehicle with lower relative pressure functions as an outlet for the flow of air from the chamber towards the outside of the vehicle in such a way as to generate jets of air that cause detachment of the boundary layer.
摘要:
A system and a method for monitoring painting quality of components, for example of motor-vehicle bodies, comprises a robot which moves a monitoring head to follow the components to be monitored while they move along a production line. The monitoring head moves with respect to the surface to be monitored and comprises both a source of light and a camera which receives the light emitted by the source of light which is reflected by the monitored surface. An electronic processing unit receives the signals coming from the camera and processes them according to different processing algorithms for detecting various categories of defects, specifically small defects, medium defects, and large defects.
摘要:
In an automotive servo-assisted mechanical transmission, an electro-hydraulic actuation group has an actuation unit, a power unit able to provide hydraulic pressure to the actuation unit and an electronic control unit, the actuation and power units being equipped with respective components that are all mounted on a hydraulic casing of the actuation unit so as to define with one another a single assembly structurally separated from the electronic control unit, at least part of the components being equipped with respective electrical connectors that are arranged in a manner such that they can all be engaged by a same multiple electrical connector device.
摘要:
A fuel-injection system for an internal-combustion engine has at least one fuel injector with a fuel-metering servo valve provided with an open/close element, which is movable in response to the action of an electric actuator; and an electronic control unit which issues to the electric actuator two electrical commands, one for carrying out a pilot injection and one for carrying out a main injection; the two electrical commands being separated by an electrical dwell time such that the main injection starts, without solution of continuity with the pilot injection, when an open/close needle for carrying out fuel injections into a cylinder of the internal-combustion engine remains at a lift value in which the fuel flow rate is negligible; in particular, the second electrical command is issued during a rebound of the open/close element on the valve seat.
摘要:
A gear change device includes a first and a second primary shaft, selectively connectable to the driving shaft of a motor vehicle, and first second secondary shafts, The device includes pairs of gear wheels, corresponding to forward gear ratios and to at least one reverse gear ratio. The reverse gear ratio is defined by a first reverse gear wheel mounted freely rotatable on the first secondary shaft and connectable in rotation with the latter by one of the selector devices. A parking gear wheel is rigidly mounted on the first secondary shaft The parking gear wheel is mounted adjacent to a roller bearing which rotatably supports the first secondary shaft within the casing and which is axially interposed between the parking gear wheel and the first reverse gear wheel.
摘要:
An automotive human machine interface comprising a control console with a display unit; a plurality of communication interfaces designed to allow the control console to communicate; wherein a first one of the communication interfaces is defined by a support to which the control console can be removably fixed, and a second one of the communication interfaces is defined by either a further support to which the control console can be removably fixed or a wireless communication system which allows the control console to communicate when it is detached from any of the supports; the supports being configured to enable the support to which the control console is fixed to be recognized; and an electronic management unit configured to manage operation of the control console, to cause user-selectable functions to be displayed on the control console, and automatically reconfigure access of a user to the user-selectable functions depending on the communication interface through which the control console communicates.